///<summary> A set of rectangle indexes of reccount rectangles, with a restart after each rectangle, in short indexes </summary>
public void CreateRectangleElementIndexUShort(GLBuffer elementbuf, int reccount, uint restartindex = 0xffff)
{
ElementBuffer = elementbuf;
ElementBuffer.FillRectangularIndicesShort(reccount, restartindex);
ElementIndexSize = DrawElementsType.UnsignedShort;
DrawCount = ElementBuffer.Length - 1;
}
// a buffer returned
/// <summary> Make a new entry of this type with an optional name </summary>
public GLBuffer NewBuffer(bool std430 = true, string name = null)
{
GLBuffer b = new GLBuffer(std430);
items[EnsureName(name)] = b;
return(b);
}
/// <summary> Make a new entry of this type with an optional name </summary>
public GLBuffer NewBuffer(int size, bool std430 = false, BufferUsageHint hint = BufferUsageHint.StaticDraw, string name = null)
{
GLBuffer b = new GLBuffer(size, std430, hint);
items[EnsureName(name)] = b;
return(b);
}
///<summary> A set of rectangle indexes of reccount rectangles, with a restart after each rectangle, in Byte indexes </summary>
public void CreateRectangleElementIndexByte(GLBuffer elementbuf, int reccount, uint restartindex = 0xff)
{
ElementBuffer = elementbuf;
ElementBuffer.FillRectangularIndicesBytes(reccount, restartindex);
ElementIndexSize = DrawElementsType.UnsignedByte;
DrawCount = ElementBuffer.Length - 1; // -1 because we do not need the last restart index to be processed
//byte[] b = elementbuf.ReadBuffer(0, elementbuf.BufferSize); // test read back
}
///<summary> Given a elementbuffer, fill with indexes from an array. Set ElementBuffer, ElementIndexSize, BaseIndexOffset, DrawCount </summary>
public void CreateElementIndexUShort(GLBuffer elementbuf, ushort[] indexes, int base_index = 0)
{
ElementBuffer = elementbuf;
ElementBuffer.AllocateFill(indexes);
ElementIndexSize = DrawElementsType.UnsignedShort;
BaseIndexOffset = base_index;
DrawCount = indexes.Length;
}
/// <summary>
/// Copy to another buffer. Other buffer must be Allocated to the size otherpos+length
/// </summary>
/// <param name="other">Other buffer</param>
/// <param name="startpos">Start posiiton in buffer</param>
/// <param name="otherpos">Position to store it in other buffer</param>
/// <param name="length">Copy length</param>
/// <param name="hint"></param>
public void CopyTo(GLBuffer other, int startpos, int otherpos, int length, BufferUsageHint hint = BufferUsageHint.StaticDraw) // newlength can be zero, meaning discard and go back to start
{
System.Diagnostics.Debug.Assert(context == GLStatics.GetContext(), "Context incorrect"); // safety
int ourend = startpos + length;
int otherend = otherpos + length;
System.Diagnostics.Debug.Assert(Length >= ourend && other.Length >= otherend);
GL.CopyNamedBufferSubData(Id, other.Id, (IntPtr)startpos, (IntPtr)otherpos, length);
}
///<summary> Vector4, Vector2 and Matrix4 in buffers. First is model, second is coords, third is instance matrix translation
/// if separbuffer = true and instancematrix is null, it makes a buffer for you to fill up externally.
/// if separbuffer = true it makes as separate buffer for instancematrix
/// if separbuffer = true and instancematrix is null, you fill up the separbuffer yourself outside of this (maybe auto generated).
/// You can get this buffer using items.LastBuffer()
/// Attributes in 0,1,4-7 set up.</summary>
public static GLRenderableItem CreateVector4Vector2Matrix4(GLItemsList items, PrimitiveType prim, GLRenderState pt,
Vector4[] vectors, Vector2[] coords, Matrix4[] instancematrix,
IGLRenderItemData id = null, int ic = 1,
bool separbuf = false, int matrixdivisor = 1)
{
var va = items.NewArray();
GLBuffer vbuf1 = items.NewBuffer();
GLBuffer vbuf2 = vbuf1;
int posi = 2;
if (separbuf)
{
vbuf1.AllocateBytes(GLBuffer.Vec4size * vectors.Length + GLBuffer.Vec2size * coords.Length);
vbuf2 = items.NewBuffer();
if (instancematrix != null)
{
vbuf2.AllocateBytes(GLBuffer.Mat4size * instancematrix.Length);
}
posi = 0;
}
else
{
vbuf1.AllocateBytes(GLBuffer.Vec4size * vectors.Length + GLBuffer.Vec2size * coords.Length + GLBuffer.Vec4size + GLBuffer.Mat4size * instancematrix.Length); // due to alignment, add on a little
}
vbuf1.Fill(vectors);
vbuf1.Fill(coords);
if (instancematrix != null)
{
vbuf2.Fill(instancematrix);
}
vbuf1.Bind(va, 0, vbuf1.Positions[0], 16);
va.Attribute(0, 0, 4, VertexAttribType.Float); // bp 0 at 0
vbuf1.Bind(va, 1, vbuf1.Positions[1], 8);
va.Attribute(1, 1, 2, VertexAttribType.Float); // bp 1 at 1
va.MatrixAttribute(2, 4); // bp 2 at 4-7
vbuf2.Bind(va, 2, instancematrix != null ? vbuf2.Positions[posi]: 0, 64, matrixdivisor); // use a binding
return(new GLRenderableItem(prim, pt, vectors.Length, va, id, ic));
}
///<summary> Vector4, Vector2 and Matrix4 in buffers. First is model, second is coords, third is instance matrix translation
/// All are supplied by buffer references
/// Attributes in 0,1,4-7 set up.</summary>
public static GLRenderableItem CreateVector4Vector2Matrix4(GLItemsList items, PrimitiveType prim, GLRenderState pt,
GLBuffer vbuf1, GLBuffer vbuf2, GLBuffer vbuf3,
int vertexcount,
IGLRenderItemData id = null, int ic = 1,
int matrixdivisor = 1,
int buf1pos = 0, int buf2pos = 0, int buf3pos = 0)
{
var va = items.NewArray();
vbuf1.Bind(va, 0, buf1pos, 16);
va.Attribute(0, 0, 4, VertexAttribType.Float); // bp 0 at 0
vbuf2.Bind(va, 1, buf2pos, 8);
va.Attribute(1, 1, 2, VertexAttribType.Float); // bp 1 at 1
va.MatrixAttribute(2, 4); // bp 2 at 4-7
vbuf3.Bind(va, 2, buf3pos, 64, matrixdivisor); // use a binding
return(new GLRenderableItem(prim, pt, vertexcount, va, id, ic));
}
///<summary> Given a elementbuffer, fill with indexes from an array. Drawtype sets the element index size. Set ElementBuffer, ElementIndexSize, BaseIndexOffset, DrawCount </summary>
public void CreateElementIndex(GLBuffer elementbuf, uint[] eids, DrawElementsType drawtype, int base_index = 0)
{
ElementBuffer = elementbuf;
if (drawtype == DrawElementsType.UnsignedByte)
{
ElementBuffer.AllocateFill(eids.Select(x => (byte)x).ToArray());
}
else if (drawtype == DrawElementsType.UnsignedShort)
{
ElementBuffer.AllocateFill(eids.Select(x => (ushort)x).ToArray());
ElementIndexSize = DrawElementsType.UnsignedShort;
}
else
{
ElementBuffer.AllocateFill(eids.ToArray());
ElementIndexSize = DrawElementsType.UnsignedInt;
}
ElementIndexSize = drawtype;
BaseIndexOffset = base_index;
DrawCount = eids.Length;
}
/// <summary> Add this type with an optional name </summary>
public GLBuffer Add(GLBuffer disp, string name = null)
{
System.Diagnostics.Debug.Assert(!items.ContainsValue(disp));
items.Add(EnsureName(name), disp);
return(disp);
}
/// <summary> Use a buffer for Vector4 elements in attribute 0</summary>
public static GLRenderableItem CreateVector4(GLItemsList items, PrimitiveType prim, GLRenderState pt, GLBuffer vb, int drawcount, int pos = 0,
IGLRenderItemData id = null, int ic = 1)
{
var va = items.NewArray();
vb.Bind(va, 0, pos, 16);
va.Attribute(0, 0, 4, VertexAttribType.Float);
return(new GLRenderableItem(prim, pt, drawcount, va, id, ic));
}
///<summary> Given a elementbuffer, fill with indexes from an array. Set ElementBuffer, ElementIndexSize, BaseIndexOffset, DrawCount </summary>
public void CreateElementIndex(GLBuffer elementbuf, uint[] eids, int base_index = 0)
{
CreateElementIndex(elementbuf, eids, GL4Statics.DrawElementsTypeFromMaxEID(eids.Max()), base_index);
}
/// <summary> Two Vector4s, second in a given buffer. Second vector can be instance divided. In attributes 0,1</summary>
public static GLRenderableItem CreateVector4Vector4(GLItemsList items, PrimitiveType prim, GLRenderState pt, Vector4[] vectors, GLBuffer buf2, int bufoff = 0,
IGLRenderItemData id = null, int ic = 1, int seconddivisor = 0)
{
var vb = items.NewBuffer();
vb.AllocateBytes(GLBuffer.Vec4size * vectors.Length);
vb.Fill(vectors);
var va = items.NewArray();
vb.Bind(va, 0, vb.Positions[0], 16);
va.Attribute(0, 0, 4, VertexAttribType.Float);
buf2.Bind(va, 1, bufoff, 16, seconddivisor);
va.Attribute(1, 1, 4, VertexAttribType.Float);
return(new GLRenderableItem(prim, pt, vectors.Length, va, id, ic));
}
/// <summary> Two Vector4s, and a Vector2. Second given in buffer. First/Second in one buffer. Second and Third vector can be instance divided. In attributes 0,1,2</summary>
public static GLRenderableItem CreateVector4Vector4Vector2(GLItemsList items, PrimitiveType prim, GLRenderState pt,
Vector4[] vectors, GLBuffer secondvector, int secondoffset, Vector2[] thirdvector,
IGLRenderItemData id = null, int ic = 1, int seconddivisor = 0, int thirddivisor = 0)
{
var vb = items.NewBuffer();
vb.AllocateBytes(GLBuffer.Vec4size * vectors.Length + GLBuffer.Vec2size * thirdvector.Length); // vec2 aligned vec4
vb.Fill(vectors);
vb.Fill(thirdvector);
var va = items.NewArray();
vb.Bind(va, 0, vb.Positions[0], 16);
va.Attribute(0, 0, 4, VertexAttribType.Float);
secondvector.Bind(va, 1, secondoffset, 16, seconddivisor);
va.Attribute(1, 1, 4, VertexAttribType.Float);
vb.Bind(va, 2, vb.Positions[1], 8, thirddivisor);
va.Attribute(2, 2, 2, VertexAttribType.Float);
return(new GLRenderableItem(prim, pt, vectors.Length, va, id, ic));
}
///<summary> Matrix4 as a buffer reference.
/// Attributes in 4-7 set up.</summary>
public static GLRenderableItem CreateMatrix4(GLItemsList items, PrimitiveType prim, GLRenderState pt, GLBuffer vb, int bufoffset, int drawcount,
IGLRenderItemData id = null, int ic = 1, int matrixdivisor = 1)
{
var va = items.NewArray();
vb.Bind(va, 2, bufoffset, 64, matrixdivisor); // use a binding
va.MatrixAttribute(2, 4); // bp 2 at attribs 4-7
return(new GLRenderableItem(prim, pt, drawcount, va, id, ic));
}
///<summary> Vector4 and Matrix4. Both are buffer references.
/// Attributes in 0,4-7 set up.</summary>
public static GLRenderableItem CreateVector4Matrix4(GLItemsList items, PrimitiveType prim, GLRenderState pt, GLBuffer shape, GLBuffer matrix, int drawcount,
IGLRenderItemData id = null, int ic = 1, int matrixdivisor = 1)
{
var va = items.NewArray();
shape.Bind(va, 0, shape.Positions[0], 16);
va.Attribute(0, 0, 4, VertexAttribType.Float); // bp 0 at attrib 0
matrix.Bind(va, 2, matrix.Positions[0], 64, matrixdivisor); // use a binding
va.MatrixAttribute(2, 4); // bp 2 at attribs 4-7
return(new GLRenderableItem(prim, pt, drawcount, va, id, ic));
}
///<summary> Vector4 and Matrix4. Matrix4 is a buffer reference.
/// Attributes in 0,4-7 set up.</summary>
public static GLRenderableItem CreateVector4Matrix4(GLItemsList items, PrimitiveType prim, GLRenderState pt, Vector4[] vectors, GLBuffer matrix,
IGLRenderItemData id = null, int ic = 1, int matrixdivisor = 1)
{
var vb = items.NewBuffer();
vb.AllocateFill(vectors); // push in model vectors
var va = items.NewArray();
vb.Bind(va, 0, vb.Positions[0], 16);
va.Attribute(0, 0, 4, VertexAttribType.Float); // bp 0 at attrib 0
matrix.Bind(va, 2, matrix.Positions[0], 64, matrixdivisor); // use a binding
va.MatrixAttribute(2, 4); // bp 2 at attribs 4-7
return(new GLRenderableItem(prim, pt, vectors.Length, va, id, ic));
}
/// <summary> Two Vector4s, both in buffers. Second vector can be instance divided. In attributes 0,1</summary>
public static GLRenderableItem CreateVector4Vector4(GLItemsList items, PrimitiveType prim, GLRenderState pt, GLBuffer buf1, int buf1off, int drawcount, GLBuffer buf2, int buf2off = 0,
IGLRenderItemData id = null, int ic = 1, int seconddivisor = 0)
{
var va = items.NewArray();
buf1.Bind(va, 0, buf1off, 16); // binding index 0
va.Attribute(0, 0, 4, VertexAttribType.Float); // attribute 0
buf2.Bind(va, 1, buf2off, 16, seconddivisor); // binding index 1
va.Attribute(1, 1, 4, VertexAttribType.Float); // attribute 1
return(new GLRenderableItem(prim, pt, drawcount, va, id, ic));
}
/// <summary> Vector4 and Vector2 in one buffer, with buffer given and positions given. Second vector can be instance divided. In attributes 0,1</summary>
public static GLRenderableItem CreateVector4Vector2(GLItemsList items, PrimitiveType prim, GLRenderState pt, GLBuffer vb, int pos1, int pos2, int drawcount,
IGLRenderItemData id = null, int ic = 1, int seconddivisor = 0)
{
var va = items.NewArray();
vb.Bind(va, 0, vb.Positions[0], 16);
va.Attribute(0, 0, 4, VertexAttribType.Float);
vb.Bind(va, 1, vb.Positions[1], 8, seconddivisor);
va.Attribute(1, 1, 2, VertexAttribType.Float);
return(new GLRenderableItem(prim, pt, drawcount, va, id, ic));
}
